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The Relationship of Nonlinear Metrics of Postural Control Following Sport Related Concussion 运动相关脑震荡后姿势控制非线性指标的关系
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000561918.54045.E9
Brian Szekely, B. Munkasy, N. Murray
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引用次数: 0
Comparing Gross Efficiency Between Rigid And Hydraulic Prosthetic Ankles During Graded Treadmill Walking 在分级跑步机上行走时,比较刚性和液压假肢踝关节的总效率
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000561003.21593.7F
Isaac B. Yoder, A. Koch
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引用次数: 0
NCAA Preseason Demonstrates Greatest Impact on Heart Rate Variability, Training Load and Sleep In Men's Soccer NCAA季前赛对男子足球运动员心率变异性、训练负荷和睡眠的影响最大
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000561829.28015.DE
Cody R Butler, Ryan M. Curtis, R. Huggins, Courteney L. Benjamin, Yasuki Sekiguchi, C. West, Lindsey K. Lepley, D. Casa
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引用次数: 0
Cross-cultural Invariance Of The Mental Toughness Index Among American And Mexican Athletes 美国和墨西哥运动员心理韧性指数的跨文化不变性
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000562696.08367.25
G. Morgan, A. Stamatis, Pedro Julián Flores Moreno, Lenin Tlamatini Barajas Pineda, A. Sánchez
The popularity of mental toughness (MT) in English-speaking countries is well recognized. However, its worldwide cultural relevance remains to be fully disclosed. Gucciardi et al. (2016) and Morgan et al. (2018), using the Mental Toughness Index (MTI), reported intra-cultural invariance of MT in Australasia and in the U.S. and Greece, respectively. To date, there has been no effort to unearth the degree of the universality of the term between Mexico and USA via MTI. PURPOSE: To examine the invariance of MT across two different cultural groups of athletes and to further validate MTI. METHODS: The MTI was completed by 97 Mexican and 173 US athletes. The MTI consisted of eight items with a seven-point response scale. The U.S. samples consisted of roughly half male and half female athletes, whereas the Mexican was predominantly male (64%). The U.S. sample consisted of athletes from a number of sports, such as American football, basketball, baseball, and softball. Half of the Mexican sample reported playing soccer and almost all other sports had fewer than five athletes. Invariance testing was conducted using multiple group confirmatory factor analysis with increasingly restrictive models. We first fitted a unidimensional model within each sample to ensure good model-data fit. Then we estimated configural (equal number of dimensions), metric (configural + equal loadings), and scalar invariance models (metric + equal intercepts). Scalar invariance is the minimum type of invariance to infer cross cultural equality. To evaluate the model-data fit, we used the comparative fit index (CFI), root mean square error of approximation (RMSEA), and the differences between these indices for increasingly restrictive models. RESULTS: The model-data fit in both samples was very good (CFIGreek = .984, RMSEAGreek = .08; CFIMex = .998, RMSEAMex = .03). The scalar invariance model was selected as the best fitting (CFAscalar = .908, RMSEAscalar = .08) but with a slightly different item intercept for two items (Item 4, < .5; Item 7, < .3). CONCLUSION: These analyses support partial scalar invariance of MT. As such, the analysis establishes a common metric of MT across samples, which allows comparisons to be made on their MT scores.
心理韧性(MT)在英语国家的流行是公认的。然而,它在世界范围内的文化意义仍有待充分揭示。Gucciardi等人(2016)和Morgan等人(2018)分别使用心理韧性指数(MTI)报告了澳大利亚、美国和希腊的心理韧性在文化内的不变性。迄今为止,还没有通过MTI挖掘墨西哥和美国之间术语普遍性的程度。目的:研究两种不同文化群体运动员MT的不变性,并进一步验证MTI。方法:由97名墨西哥运动员和173名美国运动员完成MTI。MTI由8个项目组成,反应量表为7分。美国的样本由大约一半的男性和一半的女性运动员组成,而墨西哥的样本则以男性为主(64%)。美国的样本包括许多运动项目的运动员,如美式足球、篮球、棒球和垒球。一半的墨西哥样本报告踢足球,几乎所有其他运动的运动员都少于5人。不变性检验采用多组验证性因子分析与越来越严格的模型。我们首先在每个样本中拟合一个一维模型,以确保良好的模型数据拟合。然后我们估计了配置(维度数量相等)、度量(配置+相等负载)和标量不变性模型(度量+相等截距)。标量不变性是推断跨文化平等的最小不变性类型。为了评估模型与数据的拟合,我们使用了比较拟合指数(CFI)、近似均方根误差(RMSEA),以及这些指数在日益严格的模型中的差异。结果:两个样本的模型数据拟合非常好(CFIGreek = .984, RMSEAGreek = .08;CFIMex = .998, RMSEAMex = .03)。选择标量不变性模型作为最佳拟合(CFAscalar = .908, RMSEAscalar = .08),但两个项目的项目截距略有不同(项目4,< .5;第7项,< 3)。结论:这些分析支持MT的部分标量不变性。因此,该分析建立了跨样本MT的共同度量,从而可以对其MT分数进行比较。
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引用次数: 0
Dexterity of the Lower Limb Coordination In ACL Injured Athletes 前交叉韧带损伤运动员下肢协调性的灵活性
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000561287.18901.68
I. Ogasawara, Y. Shimokochi, K. Nakata
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引用次数: 0
Effects Of A Short-term Core Stability Exercise On Functional Movement And Balance 短期核心稳定性训练对功能运动和平衡的影响
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000563316.10063.BB
Jiyeon Kim, Joungbo Ko, Jongil Lim, Hyejung Choi, Kyoungho Seo, Sukho Lee
Recently, the importance of maintaining the alignment of the human muscles and managing the left and right symmetry has been widely recognized in fields that study pain medicine, physical therapy and exercise rehabilitation. As a result, core stability exercise has been spotlighting. PURPOSE: To investigate the effects of a short-term core stability exercise on functional movement and balance in subjects with mild lower-limb discomfort. METHODS: Twenty people with mild lower-limb discomfort were randomly assigned to a non-training control (CG, n=10) and core stability exercise training group (EG, n=10). While CG maintained their daily routine, EG completed twenty 30-min training sessions consisted of 10 modified mat pilates program exercises aimed at increasing core stability. Functional movement, dynamic balance, and discomfort level were assessed before and after twenty sessions of core stability training using functional movement test, balance test and visual analog scale (VAS), respectively. Two-way (group by time) repeated measures ANOVA’s were performed for all dependent variables, and the significance for all statistical tests was set at p<.05. RESULTS: EG demonstrated a significant increase in functional movement indicated by increased hurdle step (CG; -4.7 vs. EG; 25%, p = 0.024, group × time effect) and shoulder mobility (CG; -13.04 vs. EG; 5%, p = 0.037, group × time effect). The dynamic balance score was significantly improved only in EG for both limbs (right: EG = 7.7%, p = 0.007; left: EG = 8.10%, p = 0.011, time effect). A significant reduction of VAS score in ankle was exhibited in EG (EG; -74.76%, p = 0.024, time effect). CONCLUSION: This study highlights that twenty sessions of short-term core stability exercise can positively affect the lower limb’s functional movement and balance ability in people with mild lower-limb discomfort.
最近,在疼痛医学、物理治疗和运动康复研究领域,保持人体肌肉的排列和控制左右对称的重要性已得到广泛认可。因此,核心稳定性锻炼一直备受关注。目的:探讨短期核心稳定性训练对轻度下肢不适受试者的功能运动和平衡的影响。方法:将20例轻度下肢不适患者随机分为非训练对照组(CG, n=10)和核心稳定性运动训练组(EG, n=10)。当CG保持他们的日常工作时,EG完成了20个30分钟的训练课程,包括10个修改垫普拉提计划练习,旨在提高核心稳定性。采用功能运动测试、平衡测试和视觉模拟量表(VAS)分别评估20次核心稳定性训练前后的功能运动、动态平衡和不适程度。对所有因变量进行双向(按时间分组)重复测量方差分析,所有统计检验的显著性均为p< 0.05。结果:EG显示功能运动显著增加,表明跨栏步数增加(CG;-4.7 vs. EG;25%, p = 0.024,组×时间效应)和肩关节活动度(CG;-13.04 vs. EG;5%, p = 0.037,组×时间效应)。只有四肢EG的动态平衡评分有显著改善(右:EG = 7.7%, p = 0.007;左:EG = 8.10%, p = 0.011,时间效应)。EG组踝关节VAS评分明显降低(EG;-74.76%, p = 0.024,时间效应)。结论:本研究强调20次短期核心稳定性训练对轻度下肢不适患者的下肢功能运动和平衡能力有积极影响。
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引用次数: 0
Limitations To v̇O2max In Competitive Swimmers 竞技游泳运动员的vo2max限制
Pub Date : 2019-06-01 DOI: 10.1249/01.mss.0000562461.65827.e2
Curtis S Goss, J. Greenshields, Stephen D. Husch, R. Chapman, J. Stager
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引用次数: 0
Added Load Alters Ankle And Knee Joint Moments During Stair Ascent 增加负荷改变脚踝和膝关节时刻在楼梯上升
Pub Date : 2019-06-01 DOI: 10.1249/01.mss.0000562551.45180.1f
William G. Robinson, Alexis K. Nelson, Jake A. Melaro, A. Carnall, Rachael A. Ard, Victoria A. White, D. Beeler, Spring Glover, Cris Stickley, D. Powell
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引用次数: 0
The Biomechanical Effects of Fatigue on Drop-Jump Performance in Basketball Athletes 疲劳对篮球运动员落跳性能的生物力学影响
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000562392.99961.7C
Warren C. Ondatje, G. Noffal, P. Costa, J. Coburn
HISTORY: An 18-year-old high school football player presented to the clinic following an in-game injury to his left 5th digit during a tackling attempt. History is significant for 2 previous football injuries to the same digit. The initial injury occurred 1 year prior with pain and swelling of the 5th PIP joint with limited range of motion. He returned to normal following weeks of buddy taping. Second injury occurred 2 weeks prior to current injury, after direct, traumatic contact to the PIP joint. Again there was pain, swelling, and improvement with buddy taping. The final injury requiring medical attention occurred during a tackling attempt with unclear mechanism. There was no sensation of dislocation. Pain localized to the dorsal MCP joint (MCPJ) without radiation. PHYSICAL EXAMINATION: On inspection, there was mild soft tissue swelling about the dorsal 5 MCPJ. Maximal tenderness to palpation was over the dorsal MCPJ, with secondary tenderness at the ulnar and radial PIP. On active ROM his 5 digit was unable to extend from the flexion biased natural resting hand position, which created an extensor lag of 1-2cm from the horizon at the MCP and extensor lag of 15o at the DIP. Active flexion was limited at the MCPJ and DIPJ by 10-15o compared to the normal, contralateral side. There was 0.5cm flexion lag of the 5th digit making a fist. Strength was 4/5 for FDS and FDP with pain reproduction. He had difficulty firing the extensor digiti minimi DIFFERENTIAL DIAGNOSIS: 1. Metacarpal fracture 2. Proximal phalanx fracture 3. Mallet finger 4. MCP extensor sheath injury TEST AND RESULTS: Hand X-rays: Small avulsion fracture off the volar aspect of the base of the 5th middle phalanx. MSK Ultrasound: Intact distal extensor mechanism MRI hand: Distal 5 metacarpal bone contusion without acute fracture, MCPJ capsular sprain with low-grade partial tear of the ulnar collateral ligament, and joint effusion. FINAL WORKING DIAGNOSIS: Left 5 MCPJ capsule sprain, partial tear of the 5 MCP ulnar collateral ligament, and 5 metacarpal bone contusion TREATMENT AND OUTCOMES: 1. Immobilization with hand based intrinsic plus splint encompassing the 4th + 5th MCP for 4 weeks 2. No contact sports due to osseous edema and risk of fracture until 4 week follow up 3. Follow up in 4 weeks for x-rays 4. More follow up to be presented at the conference as patient returns
历史:一名18岁的高中足球运动员在比赛中试图铲球时左手第五指受伤,随后来到诊所。历史上有两起橄榄球对同一手指的伤害是很重要的。最初的损伤发生在1年前,第5 PIP关节疼痛和肿胀,活动范围有限。经过几周的同伴录音,他恢复了正常。第二次损伤发生在本次损伤前2周,在直接创伤性接触PIP关节后。再次出现疼痛,肿胀,并与同伴胶带改善。最后需要医疗护理的伤害发生在铲球过程中,机制尚不清楚。没有脱臼的感觉。疼痛局限于MCP关节背侧(MCPJ),无放疗。体格检查:检查时,MCPJ背侧有轻度软组织肿胀。触诊时最大的压痛在小关节背侧,其次是尺骨和桡骨小关节的压痛。在活动ROM中,他的5个手指无法从屈曲偏向的自然静止手位延伸,这在MCP和DIP处造成了距地平线1-2cm的伸肌滞后和150 cm的伸肌滞后。与正常对侧相比,MCPJ和DIPJ的主动屈曲受限10- 150度。第五指握拳有0.5cm屈曲滞后。伴有疼痛再现的FDS和FDP的强度为4/5。患者指小伸肌活动困难。2.掌骨骨折近端指骨骨折3例。槌状指4。MCP伸肌鞘损伤检查和结果:手部x光片:第五中指骨基部掌侧侧小撕脱骨折。MSK超声:完整远端伸肌机制MRI手部:掌骨远端5骨挫伤,无急性骨折,MCPJ关节囊扭伤伴尺侧副韧带轻度部分撕裂,关节积液。最终工作诊断:左5 MCPJ囊扭伤,5 MCP尺副韧带部分撕裂,5掌骨挫伤。用手部内固定加夹板固定第4 +第5 MCP 4周2。由于骨性水肿和骨折风险,在随访4周前不能进行接触性运动。4周后做x光检查。随着患者的回归,将在会议上提出更多的后续措施
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引用次数: 1
Baseline Correlates Of Sedentary Behavior In The Health In Pregnancy And Postpartum (HIPP) Study 怀孕和产后健康(HIPP)研究中久坐行为的基线相关性
Pub Date : 2019-06-01 DOI: 10.1249/01.MSS.0000561798.73825.47
S. Wilcox, Jihong Liu, B. Hutto, Ellen Wingard, G. Turner-McGrievy, J. Burgis, Alycia K. Boutté, Lara Schneider
1596 Board #1 May 30 1:30 PM 3:30 PM Baseline Correlates Of Sedentary Behavior In The Health In Pregnancy And Postpartum (HIPP) Study Sara Wilcox, FACSM, Jihong Liu, Brent Hutto, Ellen Wingard, Gabrielle Turner-McGrievy, Judith Burgis, Alycia Boutté, Lara Schneider. University of South Carolina, Columbia, SC. University of South Carolina School of Medicine, Columbia, SC. Email: wilcoxs@mailbox.sc.edu
久坐行为与怀孕和产后健康(HIPP)基线相关研究Sara Wilcox, FACSM, Jihong Liu, Brent Hutto, Ellen Wingard, Gabrielle turner - mcgriy, Judith Burgis, Alycia boutt, Lara Schneider。南卡罗来纳大学,哥伦比亚,南卡罗来纳州。南卡罗来纳大学医学院,哥伦比亚,南卡罗来纳州。电邮:wilcoxs@mailbox.sc.edu
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引用次数: 0
期刊
Medicine & Science in Sports & Exercise
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